( Reaffirmed 2005 ) Indian Standard DUCTILE IRON FITTINGS FOR PRESSURE PIPES FOR WATER, GAS AND SEWAGE - SPECIFICATION ( First Revision ) FirstReprintAUGUST 2000 ICS 23:040.10; 23.040.40 0 BIS 2000 BUREAU MANAK OF BHAVAN, INDIAN STANDARDS ZAFAR MARG 9 BAHADUR SHAH NEW DELHI 110002 July 2000 Price Group 11 Pig Iron and Cast Iron Sectional Committee, MTD 6 FOREWORD This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Pig Iron and Cast Iron Sectional Committee had been approved by the Metallurgical Engineering Division Council. This Indian Standard was first published in 1980. While reviewing gained during these years, it was decided by the Sectional Committee main modifications: i) ii) iii) iv) v) Nominal diameters range has been increased commonly used in India have been included. The use of mechanical been discontinued. Requirements lining. to include this standard, in light of the experience to revise the ..t,ndard with the following up to 2 000 mm size and sizes which are and lead joint fittings have for cement mortar and push-on flexible joints have been recommended for coating have been modified incorporating the optional requirement The standard has been generally updated taking into account the modern trend in this respect in other international specifications particularly the current changes made in EN 545: 1994 and IS0 2531:1998. The weight of castings depends mainly joints. Hence as per current international on the weight of socket which again depend on the type of practice all weights are being withdrawn from the standard. with other International Standards, assistance has been In order to have co-ordination and interchangeability derived from the following publications: IS0 2531: 1998 IS0 4179 : 1985 IS0 7186 : 1996 IS0 8179-1 : 1995 IS0 8179-2 : 1995 IS0 8180 : 1985 IS0 10804-l : 1996 Ductile iron pipes, fittings and accessories and their joints for water or gas application, issued by the International Organization for Standardization (ISO) Ductile iron pipes for pressure and non-pressure mortar lining general requirements Ductile iron products ~for sewage applications Ductile iron pipes Ductile layer iron pipes External coating -Part External coating sleeving Part 1 : Design rule and type 1 : Metallic zinc with finishing layer Part 2 : Zinc rich paint with finishing pipelines Centrifugal cement Ductile iron pipes Restrained testing Ductile Polyethylene joint system for ductile iron pi~pelines - EN 545 : 1994 EN 598 : 1995 EN 969 : 1996 JIS 5527 : 1989 Ductile iron pipes, fittings accessories iron pipes, fittings, accessories Ductile iron pipes, fittings, accessories Ductile iron fittings for pressure pipes and their joints for water pipelines and their joints for sewerage applications and their joints for gas pipeline For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS 2 : 1960 `Rules for rounding off numerical values (revised)`. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. AMENDMENT NO. 3 SEPTEMBER 2012 TO IS 9523 : 2000 DUCTILE IRON FITTINGS FOR PRESSURE PIPES FOR WATER, GAS AND SEWAGE SPECIFICATION ( First Revision ) (Page 5, Table 4, Nominal Diameter DN 1100, Number of holes) -- Substitute `32' for `28'. (Page 20, Table 28, Fig, dimension `d') -- Substitute ` d' for `Ø d'. (MTD 6) Reprography Unit, BIS, New Delhi, India AMENDMENT NO. 1 JUNE 2010 TO IS 9523 : 2000 DUCTILE IRON FITTINGS FOR PRESSURE PIPES FOR WATER, GAS AND SEWAGE -- SPECIFICATION ( First Revision ) (Page 2, clause 4.1, last sentence) -- Substitute the following for the existing: `It shall be manufactured by any method at the discretion of the manufacturer provided that the requirements defined in this standard are complied with.' (MTD 6) Reprography Unit, BIS, New Delhi, India IS 9523 : 2000 Indian Standard DUCTILE IRON FITTINGS FOR PRESSURE PIPES FOR WATER, GAS AND SEWAGE - SPECIFICATION ( First Revision ) 1 SCOPE 1.1 This standard covers requirements for ductile iron fittings (special castings) to be used with pressure pipes for carrying water, gas and sewage for sizes from 80 to 2 000 mm nominal diameter. 1.2 This standard is applicable to fittings meant for mechanical joints (bolted gland), push-on-joints and flanged joints for jointing by means of various types of gaskets. The design of the socket and the gasket are not within the scope of this standard. If required, fittings fabricated from spun pipes and plain ended fittings can also be used. 1.3 This standard ~does not restrict the use and development of other types of joints as long as they maintain the overall dimensions for reasons of safety and interchangeability. 1.4 The fittings covered by this standard are normally supplied with externally and internally coated to protect against corrosion. 1608 : 1995 1865 : 1991 5382 : 1985 Mechanical testing of metals Tensile testing (second revision) Iron castings with spheroidal or nodular graphite (third revision) Rubber sealing ring for gas mains, water mains and sewers gifirst revision) 6452 : 1989 6909 : 1990 8329 : 1994 Specification for high alumina cement for structural use Specification for supersulphated cement Centrifugally cast (spun) ductile iron pressure pipes for water, gas and sewage (second revision) Deviations for untoleranced dimensions of SG iron castings Sulphate resisting portland cement 8350 : 1977 12330 : 1988 3 TERMINOLOGY For the purposes of this standard, definitions shall apply. the following 1.5 The fittings are suitable for fluid temperatures between 0°C and 50°C excluding frost. NOTE - The terms `special castings' and `push-on-flexible joints' have been referred as `castings' and `Push-on-joints' respectively henceforth in this standard. 3.1 Ductile Iron -Type of iron used for pipes, fittings and accessories in which graphite is present primarily in spheroidal form. 3.2 Pipe - Casting of uniform bore, straight~in axis, having either socket, spigot or flanged ends, except for flanged sockets, flanged spigots and collars which are classified as fittings. 3.3 Fitting-Casting other than a pipe, which allows pipeline deviation, change of direction or bore. In addition flanged-sockets, flanged-spigots and collars are also classified as fittings. 3.4 Accessory - Any item other than a pipe or fitting which is used in a pipeline, such as: glands joints; and bolts for mechanical flexible 2 REFERENCES The following Indian Standards contain provisions, which through reference in this text, constitute provisions of this standard. At the time of the publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below: IS No. 269 : 1989 Title 33 grade ordinary portland cement f$ourth revision) Portland slag cement (fourth revision) General requirements for supply of metallurgical materials (second 455 : 1989 1387 : 1993 glands, bolts and locking for restrained joints. rings or segments NOTE - Valves and-hydrants of all types are not covered by the term accessory. revision) 1500 : 1983 Methods for Brine11 hardness test for metallic materials (second revision) 3.5 Flange - Flat circular end of fittings, extending perpendicular to its axis, with bolt holes equally spaced on a circle. NOTE A flange may be fixed (for example, inkgrally cast, IS 9523:2000 threaded-on or welded-on) or adjustable; an adjustable flange comprises of a ring, in one or several parts bolted together, which bears on an end joint hub and can be freely rotated around the fittings axis before joinung. 3.21 Deviation in Length - Amount by which the design length may differ from the standardized length of a fitting. NOTE Fittings are designed to a length taking into account standard length plus or minus the deviation; they are manufactured to this length plus or minus the tolerance given in Table 14. Connecting piece used to join together the spigots of mat pipes or fittings. 3.7 Spigot Male end of fittings. 3.6Collar, Coupling 3.8 Socket - Female end of fittings to make the joint with the spigot of an adjacent component. 3.9 Gasket Sealing component of a joint. SECTION 1 GENERAL REQUIREMENTS 4 MANUFACTURE AND REPAIR 3.10 Joint - Connection between the-ends of fittings in which a gasket is used to effect a seal. 3.11 Flexible Joint-Joint whichprovides significant angular deflection and movement parallel and/or perpendicular to the fittings axis. 3.12 Push-on Flexible Joint - A flexible joint in which an elastomeric gasket is located in the socket and the joint assembly is effected by entering the spigot through the gasket into the socket. 3.13 Mechanical Flexible Joint Flexible joint in which sealing is obtained by applying pressure to the gasket by mechanical means, for example, a gland. 3.14 Restrained Joint - Joint wherein a device is provided to prevent separation of the assembled joint. 3.15 Flanged ends. Joint Joint between two flanged 4.1 The metal used for the manufacture of casting shall conform to the appropriate grade as specified in IS 1865, in commensurate with the requirements as laid down in this standard. It shall be prepared at the discretion of the manufacturer in a cupola, or an active mixer or other suitable furnace. 4.2 The castings shall be stripped with all precautions necessary to avoid warping or shrinkage defects, detrimental to their good quality. The castings shall be sound and free from surface or other defects. 4.3 Casting showing small imperfections which result from the method of manufacture and which do not affect its final use shall not be rejected on that account alone. 4.4 Minor defects may be rectified with the approval of the purchaser. Repairing of defects by welding, plugging off leaks by caulking or by application of epoxy putty may not be done without previously securing the approval of the purchaser. Repairs are to be carried out according to a written procedure included in the manufacturer's quality assurance system. Any dressing to remove imperfections, shall not reduce the thickness of the casting below the specified thickness. 4.5 The castings shall be such that they could be cut, drilled or machined. In case of dispute the castings may be accepted provided that the hardness measured on the external un-machined surface does not exceed 250 HBS. 4.6 Where castings are required to withstand pressure higher than those specified in this standard,_the casting may be strengthened by means of increased wall thickness, if necessary, at the expense of the internal diameter or by suitable ribbing or as may be mutually agreed between the manufacturer and the purchaser, to suit the pressure specified by the purchaser. . 5 THICKNESS The thickness `e' of fittings is calculated as a function of the nominal diameter 'DN'by using the formula given below with the following values for K: e = K (0.5 -t 0.001 DN) 2 3.16 Nominal Size (DN) Numerical designation of size which is common to all components in a piping system. It is a convenient round number for reference purposes and is only loosely related to manufacturing dimensions. 3.17 Nominal Pressure (PN) - A numerical designation expressed by a number which is used for reference purposes. All components of the same nominal size DN designated by the same PN number have compatible mating dimensions. 3.18 Batch - Quantity of castings from which a certain number of samples may be taken for testing purposes during manufacture. 3.19 Length - Effective length of afitting, on the drawings of 11.2. NOTE- as shown For flanged fittings the effective length is equal to the overall length and is noted L (H for branches). For socketted fittings, the effective length is equal to the overall length minus the spigot insertion depth. 3.20 Ovality - Out of roundness of a fittings section; it is equal to lOO( (A, - A,)/(A,+A,)}. where A,, is the maximum axis and A, the minimum axis of the fittings cross-section. IS 9523 : 2000 where K = 14 e = 7 + 0.014 DN where K = 12 e = 6 + 0.012 DN For `DN 80' the thickness of the fitting has been limited to minimum of 7 mm, so that, taking the tolerances into account, the thickness of the fittings is always at least equal to that of the pipes of the same nominal diameter. 6 JOINTS 6.1 In the case of push-on-joints for sizes `DN 600' and above the sockets may be with or without centering rings. 6.2 Design of the socket and rubber gaskets are not within the scope of this standard. 6.3 If agreed between the manufacturer and the purchaser, the fittings can be made with plain end also, for jointing with the help of a collar/coupling provided that the overall length of the fitting remains the same. The length of the spigot necessary for jointing shall not be less than the length of the socket of the jointing pipe. 6.4 In case of push-on-joints the spigot end of fitting, if any, shall be suitably chamfered to facilitate smooth entry of spigot in the socket of the pipes or fittings fitted with rubber gasket. 6.5 In case of flange and mechanical joint casting, the flange shall be at right angle to the axis of the joint. The bolt holes shall be either cored or drilled. 6.6 The centre of bolt holes circle shall be concentric with the bore circle and shall be located off the centre line, unless otherwise specified by the purchaser. Where there are two or more flanges, the bolt holes shall be correctly aligned between them. 6.7 The flanges shall be plain faced or with raised boss as given in Tables 4, 5.6 and 7 over the contact surface with a tool mark finishing having a pitch of 1 f 0.3 mm, serrations may be spiral or concentric. 6.8 For high pressure mains, requiring working pressure greater than 2.4 MPa, suitable flexible joint may be preferred where the joint is restrained against axial movement. 6.9 Push-on-joint fittings sizes above DN 1 600. 7 RUBBER GASKETS are normally not used for be as per manufacturer's 8 SAMPLING Sampling criteria for checking the conformity of the castings, other than the requirements specified in this standard, shall be as laid down in IS 11606. The frequency of testing is related to the system of production and quality control used by the manufacturer. The maximum batch size shall be 4 MT of crude castings, excluding the risers. 9 MECHANICAL TEST own design. Mechanical tests shall be carried out during manufacture by batch sampling system. Samples shall be taken, at the manufacturer's option, from an integrally cast sample, either from a sample attached to the casting or from a sample cast separately. In the latter case, it shall be cast from the same metal as that used for the casting. If the casting is subjected to heat treatment the sample shall be subjected to same heat treatment as that of castings. The samples, being representative of finished product, are tested for tensile strength, elongation and hardness to verify mechanical requirements. One test for castings produced during 24 hours shall be adequate. The results obtained shall be taken as to represent all the fittings of all sizes made during that period. 9.1 Tensile Test One tensile test shall be made on bar cast from the same metal in accordance with the methods specified in IS 1608.The result of the test shall conform to the mechanical properties given in Table 1. Table 1 Mechanical Nominal Diameter (mm) (1) All sizes Properties of Fittings Spe of Castings (2) Fittings Tensile Elongation at Break Percent (Min) Strength (h-fin), (MPa) (3) 420 (4) 5 9.2 Hardness Test For checking Brinell hardness specified in 4.5 test may be carried out on the test bar used for the test in 9.1. Test shall be carried out in accordance with the procedures laid down in IS 1500. 9.3 Heat Treatment Fittings shall be supplied in either `as cast' condition or `heat treated' condition. In either case, the fittings shall comply with the mechanical properties specified in 9.1 and 9.2. In the case of heat treated fittings the test samples shall be subjected to the same heat treatment process as that of fittings to which they are representative. 3 The material of rubber gaskets for use with mechanical joints and push-on-joints shall conform to IS 5382. Unless otherwise agreed between the manufacturer and the purchaser, dimensions of the rubber gasket shall IS 9523 : 2000 9.4 Retests If the piece representing specified SECTION the lot fails to pass tests 2 DIMENSIONS AND OTHER REQUIREMENTS two additional tests shall be made on tesl~pieces made from the same metal used for that lot. Should either oflhese additional test pieces fail to pass the test the lot shall be considered as not complying with this standard. in 9.1 and 9.2 in the first instance, Table 3 Dimensions of Fittings for Push-on-Joint and Mechanical Joint (Cluuse 11.1) 10 HYDROSTATIC TEST For hydrostatic test, the fittings shall be kept under pressure for 10 seconds. They shall withstand the pressure lest without showing any sign of leakage, swealing or olher defect of any kind. The test shall be conducted before the application of surface coating. 10.1 The fittings shall withstand pressure given in Table 2. the hydrostatic Table 2 Hydrostatic Test Pressure for Castings Nominal Diameter DN(mm) (1) Up to Over Over and Hydrostatic Test Pressure at Works, MPa (2) 2.5 600 2 000 test pressure Indian makes pressure 1.6 I.0 is less for fittings Standard for pipes to provide the test. Nominal Diameter DN / External Diameter DE A 3 Wall Thickness, e including 300 Nominal (I) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 (2) 98 118 144 170 222 274 326 378 425, 480 532 635 738 790 842 945 Tolerance (3) +I/-2.7 +I/-2.8 + I/-2.8 +I/-2.9 + l/-3.0 +I/-3.1 +I/-3.3 +I/-3.4 +I/-3.5 + l/-3.6 +I/-3.8 +1/-4.0 +11-4.3 + u-4.4 +I/-%5 +1/-4.8 +I/-5.0 +ll-5.4 +I/-5.8 +I/-6.6 +I/-7.0 + 11-7.4 +I/-8.2 +I/-9.0 K12 (4) 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 II.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 24.0 25.2 27.6 30.0 K14 (5) 8.1 8.4 8.7 9.1 9.5 10.5 11.2 11.9 12.6 13.3 14.0 15.4 16.8 17.5 18.2 19.6 21.0 21.4 23.8 26.6 28.0 290 32.2 35.0 Tolerance (6) -2.38 -2.40 -2.42 -2.45 -2.50 -2.55 -2.60 -2.65 -2.70 -2.75 -2.80 -2.90 -3.0 -3.05 -3.10 -3.20 -3.30 -3.40 -3.50 -3.70 -3.80 -3.90 -4.10 -4.30 300 and up to and including 600 and up to and including work the shape restraint hydrostatic of the fittings to high internal NOTE-The because sufficient than for pipes specified in the relevant it difficult during 10.2 When fittings are required for higher test pressures, the test pressures are subject to agreement between the purchaser and the manufacturer (see 4.6). 11 SIZES The standard nominal sizes `DA" of the fittings covered in this standard are as follows: 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600,700,750, 800,900, 1 000, 1 100, 1 200, 1400, 1 600, 1 800 and 2 000 mm. NOTE diameter. Nominal size is a number used to classify fittings/ joints/castings and corresponds approximately to their internal 1000 I 100 1200 I 400 L 500 I 600 1 800 2 000 I 048 1 152 I 255 1462 1 565 1668 1 875 2 082 11.1 Dimensional and other requirements for socket/ spigot of push-on:joints, mechanical joints and flanges shill conform to the requirements specified in Tables 3, 4, 5, 6 and 7 under Section 2 as relevant. 11.2 Dimensional and other requirements for fittings for specified DN shall conform to the values as given in the Tables 15 to 31 under Section 3. 12 TOLERANCES 12.1 The tolerance on dimensions of barrel and socket for push-on-joints fittings shall be as given in Table 3. 12.2 Tolerancesfor the various dimensions of flanges shall be as given in Tables 8, 9, 10 and 11. IS 9523 : 2000 Table 4 Dimensions of Standard Flange Drilling for Flange Fittings PN 10 (Clause 11.1) All dimensions in millimetres. Nominal Diameter DN Dimensions , E (3) 132 156 184 211 266 319 370 429 480 530 582 682 794 857 901 1001 1112 1231 1 328 1530 1750 1950 2 150 C (4) 160 180 210 240 295 350 400 460 515 565 620 725 840 900 950 1050 1 160 1 270 1380 1 590 1 820 2 020 2230 b (5) t6 16 16 16 17 19 20.5 20.5 20.5 21 22.5 25 27.5 29 30 32.5 35 38 40 41 44 47 50 Holes * No. . Bolt Size, Metric (1) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1 100 1 200 1 400 1600 1 800 2000 NOTES D (2) 200 220 250 285 340 395 445 505 565 615 670 780 895 960 1015 1115 I 230 1340 I 455 1 675 1915 2 115 2 325 f (6) 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 T _ 19 19 19 19 20 22 24.5 24.3 24.5 25.5 26.5 30 32.5 34 35 37.5 40 43 45 46 49 52 55 Dia (d) (10) 19 19 19 23 23 23 23 23 28 28 28 31 31 31 34 34 37 37 40 43 49 49 49 (11) Ml6 Ml6 Ml6 M20 M20 MU) M20 M20 M24 M24 M24 M27 M27 M27 M30 M30 M33 M33 M36 M39 M45 M45 M45 (k 15 15 15 15 15 16 17.5 19.5 19.5 20 21 24 24 24 24.5 26.5 28 30 31.5 32 34.5 36.5 38.5 (9) 4 8 8 8 8 12 12 16 16 20 20 20 24 24 24 28 28 28 32 36 40 44 48 1 Flanges shall be fixed. 2 Dimensions `a' and `s' are for guidance only. IS 9523 : 2000 Table 5 Dimensions of Standard Flange Drilling for Flange Fittings PN 16 (Clause 11.1) All dimensions in millimetres. Nominal Diameter DN - Dimensions - . (1) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1400 1600 1800 2000 NOTES D (2) 200 220 250 285 340 400 455 520 580 640 71.5 840 910 970 1 025 1125 1 255 1355 1 485 1 685 1930 2 130 2 345 E. (3) 132 156 I84 211 266 319 370 429 480 548 609 120 794 857 901 1001 1112 1218 1 328 1530 1750 1950 2150 C (4) 160 180 210 240 295 355 410 470 525 585 650 770 840 900 950 1050 l 170 1270 1390 1590 1620 2020 2 230 b (5) 16 16 16 16 17 19 20.5 22.5 24 26 27.5 31 34.5 36 38 41 45 48.5 52 55 60 65 70 f (6) 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 19 19 19 19 20 22 24.5 26.5 28 30 31.5 36 39.5 41 43 46 50 53.5 57 60 65 70 75 , No. (9) 8 8 8 8 12 12 12 16 16 20 20 20 24 24 24 28 28 32 32 36 40 44 48 Holes h Y Dia (d) (10) 19 19 19 23 23 28 28 28 31 31 34 37 37 37 40 40 43 43 49 49 56 56 62 Bolt Size Metric (11) Ml6 M~l6 Ml6 M20 M20 M24 M24 M24 M27 M27 M30 M33 M33 M33 M36 M36 M39 M39 M45 M45 M52 M52 M56 if, 15 15 15 15 16 17.5 19.5 21 22.5 24 25 27 27.5 28 30 32.5 35 37.5 40 42 45.5 49 52.5 1 Flanges shall be fixed. 2 Dimensions `u' and `s' are for guidance only. IS 9523 : 2ooo Table 6 Dimensions of Standard Flange Drilling for Flange Fittings PN 25 (Clause 11.1) All dimensions in millimetres. Nominal Diameter DN (1) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 14Oi.l 1600 1800 2000 NOTES Dimensions / D (2) 200 235 270 300 360 425 485 555 620 670 730 845 960 1020 1085 1 185 1320 1420 1530 1 755 1 975 2 195 2 425 1 Holes Bolt Size Metric (10) 19 23 28 28 28 31 31 34 37 37 -37 40 43 43 49 49 56 56 56 62 62 70 70 (11) Ml6 M20 M24 M24 M24 M27 M27 M30 M33 M33 M33 M36 M39 M39 M45 M45 M52 M52 M52 M56 M56 M64 M64 E (3) 132 156 184 211 274 330 389 448 503 548 609 720 820 883 928 1028 1140 1240 1 350 I 560 1 780 1980 2 210 C (4) 160 190 220 250 310 370 430 490 550 600 ~660 770 875 940 990 1090 1210 1310 1 420 1 640 1860 2 070 2300 b (5) 16 16 16 17 19 21.5 23.5 26 28 30.5 32.5 37 41.5 45 46 50.5 55 60.5 64 69 76 83 90 f (6) 3 3 3 3 3 3 -4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 < _ 19 19 19 20 22 24.5 27.5 30 32 34.5 36.5 42 36.5 50 51 55.5 60 65.5 69 74 81 88 95 15 15 15 16 17.5 19.5 22 24 25.5 27.5 29 33.5 33.5 34 35.5 39 42 45 48.5 52 56.5 61.5 66.5 cf , No. (9) 8 8 8 8 12 12 16 16 16 20 20 20 24 24 24 28 28 32 32 36 40 44 48 Dia (d) 1 Flanges shall be fixed. 2 Dimensions `a' and `s' are for guidance only. 7 IS 9523 : 2000 Table 7 Dimensions of Standard Flange Drilling (Clause 11.1) All dimensions in millimerres. for Flange Fittings PN 40 Nominal Diameter DN (1) 80 100 125 1.50 200 250 300 350 400 4.50 500 600 NOTES I Flanges shall be fixed. 2 Dimensions `a' and `s' are for guidance only. D E (3) 132 166 184 211 284 345 409 465 535 560 615 735 c (4) 160 190 220 250 320 385 450 510 585 610 670 795 Dimensions -b (5) 16 16 20.5 23 21 31.5 35.5 40 44 46 48 53 (2) 200 235 270 300 375 450 515 580 660 685 755 8Y0 f (6) 3 3 3 3 3 3 4 4 4 4 4 5 (4, 19 19 23.5 26 30 34.5 39.5 -44 48 50 52 58 s , No. (Y) 8 8 8 8 12 12 16 16 16 20 20 20 Holes * Dia (rl) (10) 19 23 28 28 31 34 34 37 40 40 43 49 , Bolt Size Metric (8) 15 15 16.5 18 21 24 27.5 31 33.5 35 36.5 40.5 (11) Ml6 M20 M24 M24 M27 M30 M30 M33 M36 M36 M3Y M45 Table 8 Tolerances on the External Diameter (Clause 12.2) D and E All dimensions in millimetres. DN Tolerance Tolerance DN Tolerance Tolerance on D on E 80 100 + 4.5 24.0 125 IS0 200 250 300 350 400 450 + 6.5. - 3.5 +S.O 500 600 + 5.5. - 2.5 24.5 800 900 + 7.5, - 4 +5.5 700 on D on E 750 I 000 1100 + 8.5,-4 25.5 1200 1 400 + lO,-5 + 6.0 1 600 1 800 + 12.-6 + 6.0 2 000 8 IS 9523 : 2000 Table 9 Tolerances on Raised Face Height (f) (Clause 12.2) All dimensions in millimetres. Table 12 Allowable Ovality for Push-on-Joint Fittings (&use 12.3.1 ) Nominal Diameter f&V(mm) SO350300 600 Allowable Difference Between Minor Axis and DE, Min (mm) Height of Raised Face (f) (1) 3 4 5 Tolerance (2) +1.5,-2.0 1.o 1 .-I5 2.0 2.4 3.5 4.0 4.5 +2, -3.0 +2.5, - 4.0 Table 10 Tolerances on Thickness of Flange (Clause 12.2) All dimensions in millimetres. 700 750800 900-1000 1 100- I 200 1400-1600 Type uf Flange (1) Integrally cast flanges Welded and screwed on flanges Table 13 Allowable Ovality for Mechanical Joint Fittings (Clauses 12.3.1 clnd 12.4.3) Nominal Diameters DN mm 80 200 400 600 150 350 500 800 Tolerance (2) LIZ (3 + 0.05 b) " (2 + 0.05 b) Maximum Ovality of Spigot of External Diameters DE mm 5 IO 20 30 40 50 60 Table 11 Tolerances on Flange Drilling (Clause 12.2) All dimensions in millimetres. 900 -1000 1100-1400 1600 -2000 Dimension Bolt~Hole Diameter Dia 19 to dia 28 Dia 3 I to dia56 (3) +3.-o + 2.8 f 2.8 Above dia 62 (4) +4,-o + 4.8 & 4.8 (t) Bolt hole diameter, d Pitch tit-cle diameter, C Centre-to-centre of adjacent bolt holes (2) +2,-o +2 f 2 12.3.3 Mechanical joint will accept some degree of spigot ovality but the measured difference between the maximum and minimum axis of individual spigots shall not exceed the values given in Table 13. 12.4 The tolerance shall be as fallows: Dpe of Casting Fittings on the wall thickness of fittings Wall Thickness (mm) 7, Greater than 7 Tolerance (mm> -2.3, - (2.3+0.001 DN) 12.3 Tolerance on Ovality shall be as far as possible circular internally and externally. The tolerance for out of roundness of the socket and spigot endain the jointing zone for push-on-joint as given in Table 12 and for mechanical joint as given in Table 13. 12.3.2 In case of oval spigot ends for push-on-joints (DE), the minor axis is permitted to be~less than the minimum allowable diameter by the value given below provided the mean diameter DE measured by circumferential tape, comes within the minimum allowable dimensions of DE (see Table 3) after applying the tolerance. The polyethylene sleeves may be supplied, for encasement of the fittings at site, along with the fittings if ordered by the purchaser. This encasement shall prevent contact between fittings and the surrounding backfill and bedding material. Details are given in Annex D. NOTE Unless otherwise agreed between the purchaser and the manufacturer the requirement of sleeving shall comply with the requirements as contained in Annex D. 12.3.1 Fittings 12.5 Lengths of Fittings The permissible deviations on the lengths of fittings shall be as given in Table 14. Table 14 Deviation on Lengths of Fittings (Clauses 3.2.1 and 12.5) Types of Fittings Nominal Diameter DN mm Flanged sockets Flanged spigots Collars, tapers Tees 80 to 1 200 I 400 to 2 OfKl Deviation in LandH mm f 25 * 35 I 400 Bends 90" (l/4) Bends 45" (l/8) Bends 22" 30' and II" 15' (l/l6 and 1132) 80 to I 200 to 2 000 80 to 2 000 80 to 2 000 +50/-25 +75/-35 zt (15 + 0.03 DN) + (IO + 0.025 ON) zk(IO + 0.02 DN) i (10 + 0.025 ON) 80 to 1 200 1400t02000 9 IS 9523 : 2000 13 COATING 13.1 Fittings and accessories shall be normally delivered internally and externally coated. 13.1.1 E.rternul Coatings By agreement between the manufacturer and the purchaser, any one of the following coatings may be applied depending upon the external condition of use: Metallic zinc with finishing Annex A; Zinc rich paint with finishing in Annex A; Bituminous External paint : as included : Annex D. sleeving layer as included in 15 MARKING 15.1 Each fittings shall have as cast, stamped or indelibly painted on it, the following appropriate marks. a) b) c) d) e) Indication of the source of manufacture, diameter, and The nominal The last two digits of the year of manufacture, PN rating of flanges when applicable, Any other maik required by the purchaser. 15.1.1 Marking may be done on the barrel of castings layer, as included in Annex C; and or on the outside of the sockets. 15.2 BIS Certification Marking The fittings may also be marked with the Standard Mark. 15.2.1 The use of the Standard the provisions Mark is governed by 13.1.2 Internal Linings By agreement between the manufacturer and the purchaser, the following lining may be applied depending on the ~internal conditions of use: Portland cement (with or without mortar, as included in Annex B; additives) in of the Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions under which the licence for the use of the Standard Mark may be granted to manufacturers or producers may be obtained from the Blireau of Indian Standards. Blast furnace slag cement mortar as included Annex B; High alumina (calcium aluminate) as included in Annex B; Cement mortar Annex B; and Bituminous with seal-coat: cement mortar as included in SECTION 16 SPECIAL 3 SPECIAL CASTINGS CASTING types with their ends joints or push-on- Special castings of the following in Annex C. either socketed (for mechanical paint as included 13.2 Unless otherwise between the purchaser and the manufacturer, the external coating and the internal lining when applied shall confirm to the requirements specified in this standard (including Annex). Additional requirements other than those specified may be agreed between the purchaser and the manufacturer. 14 QUALITY 14.1 General The manufacturer shall be able to demonstrate the conformity of the product to the requirements contained in this standard by controlling the manufacturing process and carrying out the various tests as specified in this standard. 14.2 Quality Assurance System ASSURANCE joints) or flanged shall conform to the dimensions, as relevant, to those given in tables mentioned below for each type. Tolerances and 14. shall be as per Tables 12, 13 Double Socket 90" Bend Double Socket 45" Bend Double Socket 22'W Bend Double Socket 11%" Bend Double Socket Double Socket 90" Duckfoot Tapers Bend Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 Table 25 All Socket, Flanged on Double Socket Tees Collars Flanged Socket Flanged Spigot Bend Bend Blank Flanges 90" Double Flanged 45" Double Flanged All Flange Tee Double Flanged Tapers Reducing 10 Flange The manufacturer shall control the quality of the product during manufacturing process by a system of process control in order COcomply with the technical requirements contained in this standard wherever possible statistical sampling techniques should be used to control the process so that the product is produced within the specified limits. Table 26 Table 27 Table 28 Table 29 Table 30 Table 31 90" Duckfoot Double Flanged Bend IS 9523 : 2000 Table 15 Double Socket 90" Bend (Clauses 11.2 and 16) All dimensions in millimetres. Table 16 Double Socket 45" Bend (Clauses 11.2 and 16) All dimensions in millimetres. Nominal Size 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1400 1600 e 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 L 100 120 145 170 220 270 320 370 420 470 520 620 720 770 820 920 1020 1 130 1 230 1 430 1 630 Nominal Size 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1400 1600 1800 2000 e 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 27.6 30.0 L 55 65 75 85 110 130 150 175 195 220 240 285 330 350 370 4kT 460 SOS 550 515 565 610 660 11 IS 9523: 2000 Table 17 Double Socket 22%" Bend (Clauses 11.2 and 16) All dimensions in millimetres. Table 18 Double Socket 11%" Bend (Clauses 11.2 and 16) in millimetres. All dimensions Nominal 80 100 125 150 200 2.50 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1400 Size e L 40 40 50 55 65 75 85 95 110 120 130 150 175 185 195 205 210 220 240 260 280 305 330 Nominal 80 100 125 150 200 250 300 350 400 450 500 600 Size e 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 27.6 30.0 L 30 30 35 35 40 50 55 60 65 70 75 85 95 100 110 115 120 120 130 130 140 155 165 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 27.6 30.0 7cxl 750 800 900 1000 1100 1200 1400 1600 1800 2000 1600 1800 2ocQ 12 IS 9523 : 2000 Table 19 Duckfoot (Clausrs Double Socket PO" Bend 11.2 arzd 16) Table 20 Double Socket Concentric (Clause 11.2 and 16) All dimensions inmillimetres. Tapers Alldlmensionsinmillimetres. Nominal Diameter (DN) e2 L Enh 100 Nominal Size 80 100 125 150 200 250 300 350 400 450 500 600 700 750 X00 900 125 e 1.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 150 15.6 16.8 18.0 19.2 20.4 22.8 25.2 Smaller End 80 80 80 100 100 150 150 200 150 200 250 200 250 300 250 300 350 350 400 350 400 400 500 500 600 500 600 600 700 700 800 800 900 L I10 130 I55 180 230 280 325 380 430 480 530 630 735 790 830 930 1035 c d 180 200 225 250 300 350 400 450 500 550 600 700 800 850 900 150 150 200 200 250 250 300 300 300 350 350 350 400 400 400 450 450 500 500 600 600 700 700 750 750 800 800 900 900 1000 I10 125 140 160 190 225 255 290 320 355 385 450 515 545 580 645 710 115 840 970 7.2 7.5 7.8 7.8 8.4 8.4 9.0 9.0 9.6 9.6 9.6 10.2 10.2 10.2 10.8 10.8 10.8 11.4 11.4 12.0 12.0 13.2 13.2 14.4 14.4 15.0 15.0 15.6 15.6 16.8 16.8 18.0 18.0 19.2 20.4 22.8 25.2 7.0 7.0 7.0 7.2 1.2 7.8 7.8 8.4 7.8 8.4 9.0 8.4 9.0 9.6 9.0 9.6 10.2 10.2 10.8 10.2 10.8 10.8 12.0 12.0 13.2 12.0 13.2 13.2 14.4 14.4 15.6 15.6 16.8 18.0 18.0 20.4 22.8 90 140 190 I50 250 150 250 150 350 250 150 360 260 I60 360 260 160 260 160 360 260 460 260 480 280 480 280 480 280 480 280 480 280 280 480 360 360 I 000 1100 1200 1300 1500 1700 I 000 I IOU 1200 1400 I600 I 130 I230 1430 1630 I 100 I 000 1 100 1200 1400 1600 I 000 1000 1200 1400 13 IS 9523 : 2000 Table 21 All Socket, Flange on Double Socket Tees (Cluuses 11.2 ad 16) All dimensions in millimetres. r Nominal Dia (UN) h I Branch Body e el t Branch Flange on Double Socket L A All Socket H I r A 1 Flange on Double Socket 165 175 180 190 195 200 205 210 220 235 240 250 260 265 270 280 290 300 300 320 340 330 350 380 All Socket 80 100 100 125 125 125 150 150 150 200 200 200 200 250 250 250 250 250 300 300 300 350 350 350 80 80 100 80 7 7.2 7.2 7.5 7.5 7.5 7.8 7.8 7.8 8.4 8.4 8.4 8.4 9 9 9 9 9 9.6 9.6 9.6 10.2 10.2 10.2 7 7 1.2 7 7.2 7.5 7 7.2 7.8 7 7.2 7.8 8.4 7 7.2 7.8 8.4 9 7.2 8.4 9.6 7.2 8.4 10.2 170 170 190 170 195 225 170 195 255 175 200 255 315 180 200 260 315 375 210 325 440 205 325 495 170 170 190 170 195 225 170 195 255 175 200 255 315 180 200 260 315 375 210 325 440 - 85 95 95 105 100 110 120 120 125 145 145 150 155 170 170 175 180 190 220 220 220 - 100 125 80 100 150 80 100 150 200 80 100 150 200 250 100 200 300 100 200 350 14 IS 9523 : 2000 Table 21 (Concluded) e Body Branch et Branch Flangeon Double Socket L All Socket Flangeon Double Socket 355 360 370 380 400 420 390 420 460 420 440 480 500 500 540 580 525 555 600 585 635 585 615 645 675 645 675 705 750 705 735 765 825 795 825 885 915 945 980 1010 1040 1090 1 120 I 150 I I80 H All Socket 400 400 400 400 400 400 450 450 450 500 500 500 500 600 600 600 700 700 700 750 750 800 ml 800 800 900 900 900 900 1000 1000 1000 1000 1100 1100 1200 I200 1200 1400 1400 1400 1600 I600 1600 I600 80 I00 I50 2cm 300 400 100 250 450 100 200 400 500 200 400 600 200 400 700 400 750 200 400 600 800 200 400 600 900 200 400 600 1000 400 600 600 800 I 000 600 800 I 000 600 800 10.8 10.8 IO.8 ID.8 10.8 10.8 11.4 II.4 11.4 12.0 12.0 12.0 12.0 13.2 13.2 13.2 14.4 14.4 14.4 15.0 15.0 15.6 15.6 15.6 15.6 16.8 16.8 16.8 16.8 18.0 13.0 18.0 18.0 19.2 19.2 20.4 20.4 20.4 22.8 22.8 22.8 25.2 25.2 25.2 25.2 7.0 1.2 7.8 8.4 9.6 10.8 7.2 9.0 II.4 7.2 8.4 10.8 12.0 8.4 10.8 13.2 8.4 10.8 14.4 10.8 15.0 8.4 10.8 13.2 15.6 8.4 10.8 13.2 16.8 8.4 10.8 13.2 18.0 10.8 13.2 13.2 15.6 18.0 13.2 15.6 18.0 13.2 15.6 18.0 204 185 210 270 325 440 560 215 390 620 215 330 565 680 340 570 800 345 575 925 575 985 350 580 1045 1045 355 590 1 170 1 170 360 595 1290 1290 600 830 840 _I070 1300 1030 1260 1495 1040 1275 1505 1740 - I 000 1200 15 IS 9523 ~:2000 Table 22 Collars (Clauses 11.2 and 16) in millimetres. Table 23 Flanged (Clauses Scocket 11.2 and 16) in millimetres. All dimensions All dimensions Nominal WV 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1 loo I 200 1400 1600 Dia e L d 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 160 160 165 165 170 175 180 185 190 195 200 210 220 225 230 240 250 260 270 340 360 109 130 156 183 235 288 340 393 445 498 550 655 760 810 865 970 1 075 1 180 1 285 1477 1 683 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1 100 1 200 1 400 1 600 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 130 130 135 135 140 145 130 155 160 165 170 180 190 195 200 210 220 230 240 310 330 109 130 156 183 235 288 340 393 44.5 498 550 655 760 810 865 970 1 075 1 180 1 285 1477 1683 Nominal Dia (DW e L d NOTE - For operational convenience collars are with mechanical joints only. NOTE --PN 16is the preferred flange. PN 25and PN 40flanges are supplied when ordered. 16 IS 9523 : 2000 Table 24 Flanged Spigot (Clauses 11.2 and 16) All dimensions in millimetres. Nominal Dia (DN) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 DE e L 98 118 144 170 222 274 326 378 429 480 532 635 738 790 842 945 1 048 1 152 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 27.6 30.0 350 360 370 380 400 420 440 460 480 500 520 560 600 600 6M) 600 600 600 600 710 780 830 920 1 loo 12cO 1400 1600 1800 2000 1255 1 462 I 668 1 875 2 082 NOTE - PN 16is the preferred flange. PN 25 and PN40 flanges are supplied when ordered. 17 IS 9523 : 2000 Table 25 Blank Flanges, Type PN 16 (Cluuses 11.2 and 16) All dimensions in millimetres. Nominal iDN! SO 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 Dia a 19.0 19.0 19.0 19.0 20.0 22.0 24.5 26.5 28.0 30.0 31.5 36.0 39.5 41.0 43.0 46.5 50.0 53.5 57.0 60.0 65.0 and PN40 b 16.0 16.0 16.0 16.0 17.0 19.0 20.5 22.5 24.0 26.0 27.5 31.0 34.5 36.0 38.0 41.5 45.0 48.5 52.0 55.0 60.0 KandR 325 375 425 475 575 675 625 775 875 975 I 075 1 175 I 375 I 575 h 71 80 88 97 114 131 139 148 165 182 199 216 244 276 D 200 220 250 285 340 400 455 520 580 640 775 840 910 970 I 025 1 125 1 255 1 355 1455 I 685 I 930 1000 I 100 I 200 I 400 I 600 NOTE --PN 16 is the preferred flange. PN25 flanges are supplied when ordered. 18 IS 9523 : 2000 Table 26 Double Flanged 90" Bend (Clauses 11.2 and 16) in millimetres. Table 27 Double Flanged 45" Bend (Clauses 11.2 and 16) All dimensions in millimetres. All dimensions Nominal Size e L 165 180 200 220 260 350 400 450 500 550 600 700 800 850 900 1000 1 100 1235 1 340 1 550 Nominal&e (ON) 80 e 7.0 L 130 WV 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1 100 1 200 1400 1600 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1 000 1 100 1 200 1400 1 600 1 800 2 000 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 27.6 30.0 140 150 160 180 350 400 298 324 350 375 426 478 504 529 581 632 694 750 775 845 910 980 I 765 19 IS 9523 : 2000 Table 28 Duckfoot Double Flanged 90" Bend (Clauses 11.2 and 16) All dimensions in millimetres. Nominal e L 155 175 200 230 280 335 385 440 495 545 600 705 810 860 915 1020 1 130 1 235 1340 1550 I 765 e d Size (ON) 80 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1100 1200 1400 1600 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 I10 125 140 160 190 225 255 290 320 355 385 450 515 550 580 645 710 775 840 970 1100 180 200 225 250 300 350 400 450 500 550 600 700 800 850 900 loo0 1100 1200 13M) 1500 1700 IS 9523 : 2000 Table 29 All Flanged Tees (Cluuies 11.2 and 16) in millimetres. All dimensions Naminal A , Diameter e % cl L h fDN) Body 80 100 100 125 125 125 150 150 150 150 200 200 200 200 250 250 250 300 300 300 350 350 350 400 400 400 Branch 80 80 100 80 100 125 80 100 125 150 80 100 150 200 100 200 250 100 200 300 100 200 350 100 200 400 7.0 7.2 7.2 7.5 7.5 7.5 7.8 7.8 7.8 7.8 8.4 8.4 8.4 8.4 9.0 9.0 9.0 9.6 9.6 9.6 10.2 10.2 10.2 10.8 10.8 10.8 7.0 7.0 7.2 7.0 7.2 7.5 7.0 7.2 7.5 7.8 7.0 7.2 7.8 8.4 7.2 8.4 9.0 7.2 8.4 9.6 7.2 8.4 10.2 7.2 8.4 10.8 330 360 360 400 400 400 440 440 440 440 520 520 520 520 700 700 700 800 800 800 850 850 850 900 900 900 165 175 180 190 195 200 205 210 215 220 235 240 250 260 275 325 350 300 350 400 325 325 425 350 350 450 21 IS 9523 : 2000 Table 29 (Concluded) Nominal Diameter (DN) A r I Body Branch 450 450 450 500 500 500 500 600 600 600 700 700 700 750 750 750 800 800 800 800 900 900 900 900 100 200 450 100 200 400 500 200 400 600 200 400 700 200 400 750 200 400 600 800 200 400 600 900 200 400 600 1000 400 600 600 800 1000 600 800 1000 6OC 800 1000 1200 e el L h 11.4 11.4 11.4 12.0 12.0 12.0 12.0 13.2 13.2 13.2 14.4 14.4 14.4 15 15 15 15.6 15.6 15.6 15.6 16.8 16.8 16.8 16.8 18.0 18.0 18.0 18.0 19.2 19.2 20.4 20.4 20.4 22.8 22.8 22.8 25.2 25.2 25.2 25.2 7.2 8.4 11.4 7.2 8.4 10.8 12.0 8.4 10.8 13.2 8.4 10.4 14.4 8.4 10.8 15.0 8.4 10.8 13.2 15.6 8.4 10.8 13.2 16.8 8.4 10.8 13.2 18.0 10.8 13.2 13.2 15.6 18.0 13.2 15.6 18.0 13.2 15.6 18.0 20.4 950 950 950 375 375 475 400 400 500 500 450 550 550 525 555 600 555 585 640 585 615 645 675 645 675 705 750 705 735 765 825 795 825 885 915 945 980 1010 1040 1090 1 120 1 150 1 I80 I 000 I 000 1000 1000 1 100 1 100 1 100 650 870 1 200 670 890 1 275 690 910 1 350 1350 730 950 1500 1500 770 990 1 650 1 650 980 1210 1 240 1470 1 700 1 550 1 760 2015 1600 1 835 2 065 2 300 I 000 1000 I 000 1000 1 100 1 100 1200 1200 1200 1400 1400 1400 1600 1600 1600 1600 NOTES 1 No value is specified for radius R but internal and external radius are equal. 2 PN 16 is the preferred flange. PN25 andPN40 flanges are supplied when ordered. 22 IS 9523 : 2000 Table 30 Double Flanged Concentric Tapers (Clauses 11.2 and 16) All dimensions in millimetres. Nominal Diameter (DN) A / Larger End (Body) 100 125 150 200 250 300 350 400 450 500 600 700 750 800 900 1000 1 100 1200 1400 A et L Smaller End (Branch) 80 100 125 150 200 250 300 350 400 400 500 600 600 700 800 900 1000 1000 1 200 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 11.4 12.0 13.2 14.4 15.0 15.6 16.8 18.0 19.2 20.4 22.8 25.2 7.0 7.2 7.5 7.8 8.4 9.0 9.6 10.2 10.8 10.8 12.0 13.2 13.2 14.4 15.6 16.8 18.0 18.0 20.4 22,8 200 200 200 300 300 300 300 300 300 600 600 600 600 600 600 600 600 790 850 910 1600 NOTE -PN 1400 16is the preferred flange. PN 25and PN40 flanges are supplied when ordered. 23 IS 9523 : 2000 Table 31 Reducing Flange PN 16 (Clauses 11.2 and 16) All dimensions in millimetres. 6 = 10 + 0.035 DN with a minimum value of 16 r Nominal Dia DN 200 Larger End & D 340 340 340 520 580 580 910 1125 1 255 1 255 b 17 17 17 22.5 24 24 34.5 41.5 45 45 % Cl 3 3 3 4 4 4 5 5 5 5 r DN Smaller End Nominal Dia % C2 3 3 3 3 3 4 4 5 5 5 a 40 40 40 54 54 55 67 73 73 77 80 100 125 250 250 300 500 700 700 800 350 400 700 900 1000 24 IS 9523 : 2000 ANNEX A (Clause 13.1.1) ZINC COATING A-l SURFACE CONDITION b) 500 mm x 50 mm. The fittings surface shall be dry and free from rust or any non-adhering particles or foreign matter such as oil or grease. Zinc rich paint or metallic zinc shall be applied on to the oxide external surface of the fittings or to a blast cleaned or ground surface, at the manufacturer's option. A-2 MATERIALS The coating materials are metallic zinc with content of at least 99 percent by mass or Zinc rich paint which contains 85 percent Zinc in Dry film. A-3 METHOD OF APPLICATION The mean mass of zinc coating M expressed in Grams per square metre, is calculated mass difference of the token before and after zinc coating from the following formula: M = C@42-M,) A where M,and M2 are masses in grams before and after zinc coating measured to an accuracy of 0.1 g, A is the area of the token in square metre, and C is a correction factor depending on the material of the token taking into account difference in surface roughness between the token and the fittings surface. The value of C shall be determined by the manufacturer and specified when required in test documents. A-7 REPAIRS OF THE ZINC COATING The metallic zinc coating shall be applied by a spraying process in which metallic zinc material is heated to a molten state and projected in small droplets by spray guns onto surface. The zinc rich paint coating shall be applied by a spraying or a brush process onto the fittings surface. A-4 COATING CHARACTERISTICS A-4.1 The metallic zinc coating or zinc rich paint shall cover the outside diameter of the fittings and shall be free from such defects as bare patches or lack of adhesion. A-4.2 Damaged areas of zinc coating or zinc rich paint coating caused by handling are acceptable providing the damage is less than 5 cm* per square metre of coated surface and the minor dimensions of the damaged area does not exceed 5 mm. A-5 ZINC COATING MASS Areas left uncoated, for example, under the test token and coating damaged in excess of 5 cm* per square metre of coating shall be repaired by either: a) b) a metallic zinc spray, or by application of zinc rich paint containing more than 85 percent zinc by mass in the dried film: mean mass of the applied paint shall not be less than 150 g/m*. LAYER A-8 FINISHING The mean mass of zinc coating measured shall be not less than 130 g/m* with a local minimum of 110 g/m*. In case of zinc rich paint the mean mass is 150 g/m* and the local minimum value is 130 g/m*. A-6 DETERMINATION OF ZINC COATING ZINC RICH PAINT COATING OR After metallic zinc coating or zinc rich paint coating the fittings shall be given a finishing layer of bituminous paint or synthetic resin compatible with the zinc coating. Application of this finishing layer may be done by any proven process such as spraying or brush coating at the manufacturer's choice. It shall uniformly cover the zinc coating and be free from bare patches or lack of adhesion. The mean dry film thickness of the finishing layer shall be less than 70 pm with a less minimum thickness of 50 pm. A rectangular token is attached along the fittings axis before passing it through the zinc coating equipment. After coating and trimming the minimum token sizes shall be either. a) 250 mm x 100 mm, or 25 IS 9523 : 2400 ANNEX B (CZuuse 13.1.2) CEMENT MORTAR LINING B-l MATERIALS B-l.1 Cement The cement used for the lining shall conform to the existing standards on cement. The type of cement to be used is to be mutually decided between the purchaser and the manufacturer. Normal recommendation are: B-l.2 Sand The sand used shall have a controlled granulometric distribution from fine to coarser elements; it shall be clean and shall be composed of inert, hard, strong and stable granular particles. The fine fraction comprising particles passing through a sieve of aperture size 0, 125 mm shall not be more than 10 percent by mass. The fraction comprising grains up to a maximum diameter equal to one-third of the normal thickness of the mortar lining shall not be less than 50 percent by mass. The coarsest fraction (coniprising particles which do not pass through a sieve of the aperture size closest to half the normal thickness of the mortar lining) shall not exceed 5 percent by mass. -B-1.3 Water The water used for the preparation of the mortar shall not contain substances deleterious to the mortar nor to the water it is eventually intended to transport in the pipeline. The presence of solid mineral particles is, however, admissible provided that these requirements are still fulfilled. B-l.4 Mortar The mortar of the lining shall be composed of cement, sand and water. Additives, which shall be specified, may be used, provided that they do not prejudice the quality of the coating and that of the transported water. The mortar shall be thoroughly mixed and shall have a consistency which results in a dense and homogeneous lining. The mortar shall contain by mass at least one part of cement to 3.5 parts of sand. B-2 CONDITION OF THE INTERIOR SURFACE OF THE FITTINGS BEFORE APPLICATION OF THE LINING All foreign bodies, loose scale or any other material which could be detrimental to good contract between the metal and the lining shatl be removed from the surface to which the lining is to be applied. The inner surface of fittings shall also~be free of any metal projections likely to protrude beyond 50 percent the thickness of the lining. 26 (0 Portland cement (as per IS 269 or IS 455) mortar lining perform rather well and have an expected life of approximately 50 years in soft water with moderate amount of aggressive CO, and when pH is within 6 to 9. Longer service life can be obtained by increasing the mortar lining thickness. (ii) Where cement mortar lining may be exposed to sulphate attack, ordinary Portland cement should be replaced by sulphate resisting Portland cement (as per IS 12330 or IS 6909). The sulphate concentration limit for sulphate resisting Portland cement is approximately 3 000 mg/l, the same as blast furnace slag cement which naturally possess a good resistance to sulphate attack. For sea water transmission blast furnace slag cement which ha&, A content below 3 percent can be used. (iii) High Alumina cement (as per IS 6452) mortar lining is suitable for continuous use of pH between 4 and 12 and no severe damage occur after occasional exposure to pH 3 to 4 and 12 to 13. (iv) The recommended types of cements used for lining are as given in Table 32. Table 32 Recommended Types of Cements Used %r Lining Waler Characteristics Portland Cement Sulphate Resisting Cements (Including Blast Furnace Slag Cements) (3) 5.5 High Alumina Cement (1) Minimum value of pH Maximum content (mg/l) of: Aggressive CO1 Sulphates (SO,-) Magnesium (Mg") Ammonium (NHd+) (2) 6 (4) 4 I 400 100 30 15 3 000 500 30 no limit no limit no limit no limit IS 9523 ~:.2000 B-3 APPLICATION OF THE LINING The lining shall be such that it cannot be dislodged with pressure of hand and shall be free from corrugations or ridges that could reduce the thickness of the lining to less than the minimum value at one point, as specified in the Table 33. Table 33 Thickness of Lining The mortar will be works applied by a suitable process. Smoothing with a trowel is permitted. The layer of mortar should be free of any cavity or visible air bubbles and care shall be taken to ensure maximum density at all points. After the lining is applied it shall be cured at temperatures greater than 4°C. Any loss of water from the mortar by evaporation shall be sufficiently slow so that hardening is not impeded. B-4 REPAIR OF LINING (Clauses B-5 and B-7) All dimensionsin millimetres. DN ,-A-T Nominal Value Thickness Maximum Crack Width and Radial Displacement Tolerance -1.5 -2.0 -2.5 -3.0 Repairs to damaged or defective areas are allowable. The damaged mortar shall first be removed from these areas. Then the defective part shall be repaired by using, for example, a trowel with fresh mortar so that a continuous lining having a constant thickness is again obtained. For the repair operation, the mortar shall have a suitable consistency, if necessary, additives may be included to obtain good adhesion against the side of the existing undamaged mortar. B-5 THICKNESS OF THE LINING 080 to 350 to 700 300 600 3.0 5.0 6.0 9.0 0.8 1.0 1.2 1.5 to 1200 1 400 to 2 000 NOTE 50 mm. Fittings ends may have a chamfer of maximum length On contraction isolated of the lining, the formation of cracks cannot be avoided. These cracks, together with other cracks which may result from manufacture are acceptable or may develop during transportation, up to a width given in the above. B-8 SEAL COAT B-8.1 General When specified the cement lining shall be given a seal coat of bituminous material be agreed compatible Other seal-coat material or any other epoxy based with Cement Mortar Lining. may be used, but they shall and shall be order. lime leaching The nominal thickness of the lining and its negative tolerance and maximum crack width/radial displacement are given in Table 33. At the fittings ends, the lining may be reduced to values below the minimum thickness. The length of the chamfer shall be as small as possible but, in any case, shall be less than 50 mm. B-6 DETERMINATION OF LINING THICKNESS materials The thickness of the lining is checked on the freshly centrifuged mortar by the insertion of a steel pin, or on the~hardened mortar by means of a non-destructive method of measurement. The thickness of the lining shall be measured at both ends of the fittings in at least one section perpendicular to the fittings axis. B-7 SURFACE CONDITION HARDENED LINING OF THE on at the time of purchase specified on the purchase The purpose of seal coat is to minimize rise in pH value of the transmitted of the cement mortar as well as to restrict the unwanted water. potable any to the washing When the pipes are to be used for conveying water the inside soluble coating shall constituent not contain in such water or any ingredient any taste or whatsoever and suitable The surface of the cement mortar lining shall be uniformly smooth. Only isolated grains of sand are hallowed to appear on the surface of the lining. which could impart of the mains. potable water after sterilization 27 IS 9523 : 2000 ANNEX C (Chuses 13.1.1 and 13.1.2) BITUMINOUS C-l GENERAL Unless otherwise agreed between the purchaser and the manufacturer, fittings shall be coated externally and internally with the same material. (Bituminous coatings are either hot applied or cold applied). C-2 GENERAL CHARACTERISTICS -C-2.4 When the pipes are to be used for conveying potable water the inside coating shall not contain any constituent soluble in such water or any ingredient which could impart any taste or whatsoever to the potable water after sterilization and suitable washing of the mains. C-2.5 Pipes with or without sockets and flanges which are imperfectly coated or where the coating does not set or conform to the required quality, the coating shall be removed and the pipes/flanges recoated. 1 COATING minimum thickness shall be not less than 50 p. C-2.3 Where the coating material has a tar or similar base, it shall be smooth and tenacious and hard enough not to flow when exposed to a temperature of 65°C but not so brittle at a temperature of 0°C as to chip off when scribed with a penknife. C-2.1 Coating shall not be applied to any fittings unless its surfaces are clean, dry and free from rust. C-2.2 Unless otherwise agreed between the purchaser and the manufacturer all fittings shall be coated externally and internally with the same material. The method of coating shall be as per usual practice of the manufacturers. The coating material shall set rapidly with-good adherence and shall not scale off. The mean thickness of the coating shall be-not less than 70 pm and the local ANNEX D (CZause 13.1.1) POLYETHYLENE D-l MATERIAL D-l.1 Characteristics Layflat Width of Tubular Polyethylene Film SLEEVING Table 34 Layflat Width of nbular Polyethylene Film for Various Sizes of Iron Fittings The material used for making the film is polyethylene or a mixture of polyethylenes and/or ethylene and olefin copolymers. Its-density shall be between 910 and 930 kg/m3. and Impurities is required, the ~addition of an is used for this range of 2 to 3 Nominal Internal Diameter of Fittings in mm 80 100 1.50 200 250 300 350 400 450 500 600 700 800 900 1000 1 100 1 200 1400 1 500 1600 1 800 2 000 - I For Use with Fittings Line Incorporating Flexible Joints 350 350 450 550 650 700 800 1 100 1 100 1350 1350 1750 I 750 2000 2000 2 500 2 500 2 750 2 750 3 100 3 600 4 000 D-l.2 Additives If protection against ultra-violet rays material shall be stabilized by the appropriate product: if carbon black purpose the addition shall be in the percent by mass. D-2 DIMENSION D-2.1 Width The nominal flat width of the tube or flat or flat sheet is specified in Table 34. D-2.2 Thickness The nominal thickness of the sleeving shall be not less than 200 pm and not more than 250 l.rrn unless otherwise agreed. 28 NOTE - Actual Layflat width of the tubular film shall not differ from the nominal bv more than lt2.5 Dercent IS 9523 : 2000 The negative tolerance on the nominal thickness shall not exceed 10 percent. If necessary, it is permitted to use thicker sleeving or double sleeving. D-3 MECHANICAL PROPERTIES D-4 ELONGATION The elongation at fracture of the film in the longitudinal and transverse directions shall be not less than 300 percent. D-5 DIELECTRIC STRENGTH Tensile strength of the film in the longitudinal and transverse direction shall be not less than 8.3 MPa. The Dielectric Strength of the film should be 3 l.SV&m minimum. 29 Bureau of Indian Standards BIS is a statutory institution established under the Bureau of hdian Standards Act, 1986 to promote markin g and quality certification of goods harmonious development of the activities of standardization, and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BTS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publications), BIS. Review of -Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of `BIS Handbook' and `Standards: Monthly Additions'. This Indian Standard has been developed from Dot : No. MTD 6 (4228). Amendments Amend No. Issued Since Publication Text Affected Date of Issue BUREAU Headquarters: OF INDIAN STANDARDS Manak Bhavan. 9 Bahadur Shah Zafar Marg, New Delhi I10 002 Telephones : 323 01 31,323 33 75,323 94 02 Regional Central Offices : Shah Zafar Marg Telegrams : Manaksanstha (Common to all offices) Telephone 323 76 17 323 38 41 X5 61 91 20 : Manak Bhavan, 9 Bahadur NEW DELHI I 10 002 1 Eastern : l/14 C. 1.T. Scheme VII M, V. I. P. 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